This communication represents an interim instalment of experiments still in course, which are aimed at the elaboration of a ringworm culture medium that will entirely and satisfactorily replace the original "milieu d'epreuve" or test medium of Sabouraud; or, better yet, a medium that will, in addition, be free from the objectionable factors inherent (at least for fungi) in a medium comprised of one or more chemically impure substances like peptone, which are not internationally reproducible at all times. The last mentioned phase of the problem is the one which we look forward to with the greatest expectations. This communication will indicate that at present the efforts of dermatomycologists generally are being directed toward the elaboration of substitutes for Sabouraud's formula, and that our own work, while unfruitful, marks at least a beginning in a different direction, that is, a formula free from defects contingent on peptone, such as were indicated.
WEIDMAN FD, SPRING D. COMPARISON OF RINGWORM CULTURE INGREDIENTS: II AND III. Arch Derm Syphilol. 1928;18(6):829–851. doi:10.1001/archderm.1928.02380180022002
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